What if you purchased furniture foam at the craft store. Shaped it into a horn shape and then covored in a red velvet. And of course then add on to a clippie. That is what i recently used as a base to make cat ears for a friends daughter and then attached to a clip. Hope this helps

I just made horn clippies for my niece. I used the super light weight clay from Michaels, painted and sealed them and glued with E6000. She has very fine hair, but they are light enough to stay in place. HTH